<template>
    <div class="login_container">
      <div class="login_box">
        <!--头像区域-->
        <div class="avatar_box">
          <img src="../assets/pic05.png" alt="">
        </div>
        <!--登录表单部分-->
        <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" label-width="0px" class="login_form">
<!--          用户名-->
          <el-form-item prop="username">
            <el-input v-model="loginForm.username" prefix-icon="el-icon-user"></el-input>
          </el-form-item>
<!--          密码-->
          <el-form-item prop="password">
            <el-input v-model="loginForm.password"  prefix-icon="el-icon-view"
            type="password"></el-input>
          </el-form-item>
<!--          按钮区域-->
          <el-form-item class="btns">
            <el-button type="primary" @click="login">登录</el-button>
            <el-button type="info" @click="resetLoginForm">重置</el-button>
          </el-form-item>
          </el-form>
      </div>
    </div>
</template>
<script>
export default {
  data() {
    return {
      loginForm:{
        username:'admin',
        password:'123456'
      },
      // 表单验证规则对像
      loginFormRules:{
        // 验证用户名是否合法
        username: [
          {required: true, message: '请输入登录名称', trigger: 'blur'},
          {min: 3, max: 10, message: '长度区间在3到10个字符', trigger: 'blur'}
        ],
        // 验证密码是否合法
        password: [
          {required: true, message: '请输入登录密码', trigger: 'blur'},
          {min: 6, max: 10, message: '长度区间在6到10个字符', trigger: 'blur'}
        ]
      }
    }
  },
  methods: {
    // 点击重置按钮
    resetLoginForm() {
      console.log(this.$refs.loginFormRef)
      this.$refs.loginFormRef.resetFields()
    },
    login() {
      // 返回的是一个promise对象，使用await时要在邻近它的函数加一个async
      //validate 用来检验输入是否合法
      this.$refs.loginFormRef.validate( async valid => {
        console.log(valid)
        if(!valid) return;
        // data对象中的解构赋值
        // const {data : res} = await this.$http.post('login', this.loginForm)
        // console.log(res)
        // if(res.meta.status !== 200) return this.$message.error('登录失败')
        this.$message.success('登录成功')
        //将登录成功之后的token保存到客户端sessionStorage中
        // window.sessionStorage.setItem('token',res.data.token)
        this.$router.push('/home')
      })
    }
  }
}
</script>

<style Lang="less" scoped>
  .login_container{
    background-color: #2b4b6b;
    height: 100%;
  }
  .login_box{
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);

  }
  .avatar_box{
    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius:50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;
  }
  .avatar_box img{
    width: 100%;
    height: 100%;
    border-radius:50%;
    background-color: #eee;
  }
  .login_form{
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
  }
  .btns{
    display: flex;
    justify-content: flex-end;
  }
</style>
